Dell Technologies - interview guide

Dell Technologies interview questions - a complete guide

According to reports, Dell's online test has about 75 questions in 90 minutes - speed is crucial. Here is preparation for the test and the interviews.

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About Dell Technologies

Dell Technologies makes laptops, desktops, servers, storage and networking, and provides solutions for companies' data centres. It has large engineering and services centres in Bengaluru and Hyderabad.

This guide covers 12 Dell interview questions with answers - what each question checks and how to answer it - plus the Dell interview process, round by round, a 7-day preparation plan for freshers, tips and the mistakes to avoid.

Dell Technologies hiring process

  1. Online test (proctored)

    Reported: about 75 questions in 90 minutes - aptitude and CS fundamentals.

  2. Technical interviews (2)

    Data structures, OS, DBMS, networking, OOP and some design.

  3. HR

    Fit and location.

Dell Technologies does not publish its India fresher interview process in detail (as of our check). This is based on candidate reports - many of them for experienced roles, so the fresher process can differ. Confirm with the recruiter.

Sources (checked 16 October 2026): Dell Careers. Hiring processes change - read the official notice before you apply.

Dell Technologies interview questions and answers

Hardware, storage and systems

  1. 1.What happens between pressing a laptop's power button and the OS running?

    What they're checking
    Dell's core - understanding systems.
    How to answer
    Firmware (BIOS/UEFI) checks the hardware (POST), finds the boot device, runs the bootloader, which loads the OS kernel, then drivers and services.

  2. 2.What is the difference between RAID 0, 1 and 5?

    What they're checking
    Storage - a big business for Dell.
    How to answer
    RAID 0: data split for speed, but lose one disk and you lose everything. RAID 1: a full copy (mirror), half the capacity. RAID 5: with parity - data survives one disk failure, more capacity.

  3. 3.What is the difference between SAN and NAS?

    What they're checking
    Enterprise storage.
    How to answer
    NAS is a network share at file level (like a shared folder). SAN is block-level storage on a dedicated network - looks like a local disk to the server, for databases.

  4. 4.A customer says their laptop is very slow - what would you check?

    What they're checking
    Common in support/IT roles.
    How to answer
    CPU/RAM/disk in Task Manager, startup programs, disk space, a malware scan, updates and drivers, and hardware health (disk/battery). One by one, telling the customer.

CS fundamentals

  1. 5.What is the difference between deadlock and starvation?

    What they're checking
    OS.
    How to answer
    In deadlock, processes wait for each other and stop forever. In starvation a process could run, but never gets its turn because others keep getting priority. Aging fixes starvation.

  2. 6.What is the difference between a clustered and a non-clustered index?

    What they're checking
    DBMS.
    How to answer
    A clustered index keeps the table's data itself in that order - there can be only one. A non-clustered index is a separate structure pointing to rows - there can be many.

  3. 7.75 questions in 90 minutes - how would you manage time?

    What they're checking
    Test strategy.
    How to answer
    About 1 minute per question; mark and skip the ones you get stuck on, easy ones first, and the last 10 minutes for the marked ones.

Coding and design

  1. 8.Reverse the order of words in a sentence ('I love Dell' -> 'Dell love I').

    What they're checking
    Strings.
    How to answer
    Split on spaces, reverse, join - handle extra spaces. In place: reverse the whole string, then each word.

  2. 9.Search for a number in a matrix sorted by both rows and columns.

    What they're checking
    A smart search.
    How to answer
    Start from the top-right corner: if it is bigger, go left; if smaller, go down. O(m + n).

  3. 10.How would you design the system from laptop order to delivery at a high level?

    What they're checking
    Supply chain design.
    How to answer
    An order service, a configuration check, reserving inventory/parts, a build request to the factory, a shipping partner, and status to the customer at every step - with events.

HR

  1. 11.Why Dell?

    What they're checking
    Motivation.
    How to answer
    A Dell product or enterprise solution, and the mix of hardware and software - specific.

  2. 12.Are you ready to start in any role, from support to development?

    What they're checking
    Flexibility.
    How to answer
    State your preference honestly, but show you are glad to learn - and what kind of work you are strong in.

7-day preparation plan for the Dell Technologies interview

  1. Day 1: Aptitude - timed sets.
  2. Day 2: OS - deadlock, scheduling, memory.
  3. Day 3: DBMS - indexes, normalization, SQL.
  4. Day 4: Networking + storage + the boot process.
  5. Day 5: Coding - strings, matrices - six problems.
  6. Day 6: A full 90-minute test mock.
  7. Day 7: A mock interview + HR.

Preparation tips

  • Speed in the online test - timed practice every day.
  • Nail all the basics of OS, DBMS and networking.
  • An idea of storage (RAID, SAN/NAS) and the boot process.
  • Write easy-medium coding cleanly.

Mistakes to avoid

  • Getting stuck on one question in the test.
  • Not knowing hardware basics at a hardware company.
  • Guessing without order in a troubleshooting question.

Frequently asked questions

How many questions are in the Dell online test?

According to reports, about 75 questions in 90 minutes - aptitude and CS.

How many rounds are there in the Dell interview?

Commonly an online test, two technical rounds and HR.

Where is Dell in India?

Large centres are reported in Bengaluru and Hyderabad.

What comes up in Dell's technical round?

Data structures, OS, DBMS, networking and OOP.

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